EP 0211261 B1 19910925 - METHOD FOR AUTOMATICALLY TESTING A COMMUNICATION SYSTEM, ESPECIALLY A PRIVATE BRANCH EXCHANGE
Title (en)
METHOD FOR AUTOMATICALLY TESTING A COMMUNICATION SYSTEM, ESPECIALLY A PRIVATE BRANCH EXCHANGE
Publication
Application
Priority
DE 3527484 A 19850731
Abstract (en)
[origin: EP0211261A2] To carry out a test, an external switching device (EK) is plugged on at the main distribution frame (HV) of the system (NA) to be tested. This switching device establishes, under the influence of a test program (PD), a line-side connection between individual subscriber circuits (TS) and/or connection circuits (AS). To provide the possibility of variable access, the external switching device is controlled by individual information items which are transmitted by contact elements (k1,...kn) to be operated by the central processor (ZST) and already provided for other purposes. In one of the two circuits (TS, AS) in each case connected to one another via the external switching device (EK), certain events or signals (seizure, ringing, metering pulses) are triggered. These activate the indication points which exist in the other circuit in each case for just these events or signals. The indication points are interrogated in the normal manner by the central processor (ZST) in conjunction with the test program. This makes it possible to determine both that they are functioning correctly and that the events are correctly triggered. An error can be displayed on the display of the terminal device used as exchange telephone (VF) in the system. <IMAGE>
IPC 1-7
IPC 8 full level
H04M 3/22 (2006.01); H04M 3/32 (2006.01); H04Q 3/62 (2006.01)
CPC (source: EP)
H04M 3/22 (2013.01); H04M 3/323 (2013.01); H04Q 3/627 (2013.01); H04Q 2213/1302 (2013.01); H04Q 2213/1304 (2013.01); H04Q 2213/13076 (2013.01); H04Q 2213/1313 (2013.01); H04Q 2213/1316 (2013.01); H04Q 2213/13175 (2013.01); H04Q 2213/1322 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR IT LI NL SE
DOCDB simple family (publication)
EP 0211261 A2 19870225; EP 0211261 A3 19880914; EP 0211261 B1 19910925; AT E67914 T1 19911015; DE 3681652 D1 19911031
DOCDB simple family (application)
EP 86109392 A 19860709; AT 86109392 T 19860709; DE 3681652 T 19860709